Untitled Flashcards Set

COAL LEC QUIZ 



  1. Registers. Briefly define the functions of the following registers (3pts each). 

  1. Accumulator Register (AX) - Used for arithmetic instructions. Holds the result of mathematical operation. 

  2. Base Register (BX) - Base Operations

  3. Counter Register (CX) - Looping instructions

  4. Data Register (DX) - Extra register/ Used to extend all registers.

  5. Instruction Pointer (IP) - Holds the memory address of the next instruction to be executed.



  1. Microprocessor System. Identify the different components of a microprocessor system based on the diagram below (2pts). Briefly define the function of each components. Use the back of the questionnaire for the definition (3pts). 

  1. Input - Accepts data and instructions for processing

  2. CU - Manages the all computer operation.

  3. ALU - Arithmetic Logic Unit actual performs arithmetic and bitwise operations on integer binary numbers. / Full operation of the computer is done.

  4. Memory - Stores data and instructions temporarily or permanently (Primary, Secondary Memory)

  5. Output - Displays the result of the processed data



  1. How many bits are required to specify addresses in a 32gb memory when the machine is byte addressable? (5pts) 

  • 32 x 2^30 = 2^5 x 2^30 = 2^35 bits



  1. What if the machine is word addressable where each consist of 4 bytes or 32 bits? (5pts) 

  • 2^35 / 4 = 2^35 / 2^2 = 2^33 bits



  1. Memory. Given the number of bits. Identify the following given. 



  1. bit

1 bit

  1. nibble

4 bits

  1. byte

8 bits

  1. word

16 bits

  1. Double word

32 bits

  1. Quadword

64 bits

  1. Kilobyte

1024 bits

  1. Two Kilobyte (?)

2048 bits

  1. Four Kilobyte (?)

4096 bits

  1. Eight Kilobyte (?)

8192 bits





  1. Identify the following. 

  1. External/Secondary Memory

Four (4) types of memory

  1. Internal/Primary Memory

  1. Cache Memory

  1. CPU Registers

  1. Random Access Memory (RAM) 

Two (2) types of Primary Memory

  1. Read-Only Memory (ROM) 

  1. Programmable ROM (PROM) 

Three (3) types of ROM

  1. Erasable & Programmable ROM (EPROM) 

  1. Electrically Erasable PROM (EEPROM) 

  1. Static RAM (SRAM) 

Two (2) types of RAM

  1. Dynamic RAM (DRAM) 

  1. Control Unit (?)

Two (2) important components inside the CPU

  1. Arithmetic Logic Unit (?)

  1. Byte addressable (?)

Two (2) ways a processor is addressing the memory

  1. Word addressable (?)